I thought one of my GG's was a dwarf for a while... did not grow much in the first year at all. Year three, he doubled his size then his face exploded. Gotta love those fish *lol* ) Will post a picture of him soon...
I have problems with my GG's.. they don't like anybody except me (the food bearer) I tried a few tank mates who very quickly lost all sorts of finnage (particulary the tail area). Needless to say, each GG is in a separate tank and I would not swap them for the world )